So – I have blogged about how to enable IPv6 on your firewall & setup your tunnel, and how to manually add addresses to an ubuntu server, but what about the server you are sticking on the end of the tunnel permanently – you want it up every reboot.

Most modern distro’s will have IPv6 enabled out of the box & it will do its best to grab an address. I didnt want autoconfiguration to hand any old address to it (even with SLAAC using the MAC address) to this host – so I could properly setup inbound & outbound FW rules.

You can turn it off by entering the following in /etc/sysctl.conf & reboot

Recently I decided I had had enough of OSX and threw Ubuntu 10.10 on it – all has been reasonably smooth sailing (minus the dying HDD, the repartitioning & GRUB woes …)

I pulled the Airport Extreme out of the cupboard the other day (I had been tethering with my Android HTC Desire while we were building a house) – and lo & behold I had dramas connecting to it. Wireless N WPA2/TKIP.

Anyway, a bit of googling time later, I found a great couple of lines to fix the issue. Wireless has been rock solid (so far) since making this change. Changing the ifupdown to managed & adding config for ifup & ifdown did the trick.

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